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/FOOTHILL <br /> ENGINEERING <br /> 8442 STORY RIDGE WAY ANTELOPE,CA 95843 <br /> PH:(916)729-5184 <br /> Fj(ql 6)729-0593 <br /> June 22,2011 <br /> Mr. Michael Infuma <br /> San Joaquin County Public Health Service <br /> Environmental Health Department <br /> 600 East Main Street <br /> Stockton,CA 95202-3029 Site Code#1038 <br /> Global ID#70607700605 <br /> Subject: Michael D. &Sharon Olivarez Property at 300 S. California St. Stockton, Ca. <br /> Second Quarter 2011 Monitoring Report. <br /> Dear Mr. Infama: <br /> Please find below the report covering the second quarter 2011 monitoring activities on the above <br /> stated property. <br /> SECOND QUARTER 2011 MONITORING REPORT <br /> Site History <br /> Five fuel USTs and one used motor oil tank were removed by Jim Thorpe Oil in November 1992 <br /> under a permit from the PHS/EHD. Soil samples taken from under the USTs and the dispensing <br /> equipment indicated the presence of hydrocarbons. Spoil from the excavation was found to <br /> contain hydrocarbon contamination. <br /> The Clearwater Group submitted a work plan to install three soil borings with monitoring wells <br /> constructed in the same boring. The work described in the Clearwater Work Plan was completed <br /> in March of 1995. <br /> The excavation for the removal of the USTs was backfilled by Jim Thorpe Oil in April 1996. The <br /> excavation spoil was used for backfill material. <br /> Foothill Engineering was requested by the owner to sample the three monitoring wells that were <br /> installed by Clearwater at various times and the analysis of those samples is attached. <br /> Monitoring wells' MW-1 and MW-2 continue to contain high levels of gasoline contamination. <br />